21053230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4451}}^1$

素因数の和:4512

約数の個数: 32

約数和(自身を含む): 42311808

約数和(自身を除く): 21258578

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4451, 4730, 8902, 22255, 44510, 48961, 97922, 191393, 244805, 382786, 489610, 956965, 1913930, 2105323, 4210646, 10526615, 21053230]

約数ペア:

[(1, 21053230), (2, 10526615), (5, 4210646), (10, 2105323), (11, 1913930), (22, 956965), (43, 489610), (55, 382786), (86, 244805), (110, 191393), (215, 97922), (430, 48961), (473, 44510), (946, 22255), (2365, 8902), (4451, 4730)]